Donald John Trump, Sr. (born June 14, 1946) is an American business magnate, author, and television personality. He is the chairman and CEO of The Trump Organization, a real-estate developer based in the United States. Trump is also the founder of Trump Entertainment Resorts, which operates numerous casinos and hotels worldwide. Trump's extravagant lifestyle and outspoken manner have made him a celebrity for years, and more recently with his NBC reality show The Apprentice, where he serves as host and executive producer. In 2010, Trump expressed interest in becoming a candidate for President of the United States in 2012 but subsequently withdrew from the running. In 2011, Trump ranked No. 17 on the Forbes Celebrity 100 list.

Trump is the fourth of five children of Fred Trump, a real-estate tycoon and developer based in New York City. Donald was inspired to follow his father into real-estate development, and began working on projects for his father's real-estate firm while still in college. Upon his graduation from the Wharton School of the University of Pennsylvania in 1968, Trump formally joined his father's company, Elizabeth Trump & Son. He took the helm in 1971 and renamed it The Trump Organization.